html {
  font-family: 'Roboto', sans-serif;
}

body {
  font-size: 13px;
  line-height: 20px;
  background-color: #fafafa;
  padding: 0;
  margin: 0;
}

body *{
  font-family: "微软雅黑";
}
.app-bar{
  position: fixed;
  top: 0;
  left:0;
  right: 0;
  z-index: 1;
}
.app-content{
  padding:80px 0;
}
.Paper{
  margin: 0 auto;
  padding: 10px;
}
.sub-header{
  padding:0 10px; 
}
.nav-bottom{
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
}